I attend the NRC which is been highly criticized as legalistic and hyper-calvinistic, being on the inside I can safely say it's neither of those things.

Abstaining from vein and worldly endeavors is not a work unto salvation but is a matter of honor and commitment to the Lord of all the Heaven & Earth. There are many things in this GOd-given earth we can enjoy without going the way of the world. As for the Lord's Day, it is a Holy Day void of destractions.

The mercy of God is necessary not only when a person repents, but even to lead him to repent, Augustine